Fastener and disassembling apparatus for the same

Abstract

The present invention relates to a fastener and a disassembling apparatus for the same. The fastener ( 10 ) of the present invention has a cylindrical hollow body ( 12 ) which configures a framework. A through hole ( 14 ) is penetrated through an inside of the hollow body ( 12 ) in a longitudinal direction thereof. A plurality of coupling legs ( 16 ) are formed by deformation slits ( 18 ) to extend toward one end portion of the hollow body ( 12 ). A coupling protrusion ( 20 ) is formed at an outer surface of the front end of the coupling leg ( 16 ), while a releasing portion ( 24 ) is formed at an inner side of the hollow body ( 12 ) which is opposite to the outer surface. A placing step ( 22 ) is formed in a stepwise manner at a location adjacent to the other end portion of the hollow body ( 12 ) which corresponds to an opposite side of the coupling protrusion ( 20 ). A separating protrusion ( 28 ) is formed at an end of the other end portion of the hollow body ( 12 ). A disassembling apparatus ( 30 ) has a release pin ( 34 ) protruding on one side of a frame ( 32 ), and a release coupling hole ( 36 ) is formed in the release pin ( 34 ) so that the releasing portion ( 24 ) may be inserted and guided in the release coupling hole ( 36 ). The release lever ( 38 ) is provided to extend to be spaced apart from the frame ( 32 ) at a predetermined interval, and a catching protrusion ( 40 ) caught by the separating protrusion ( 28 ) is formed at the front end of the release lever ( 38 ). According to the present invention, since the fastener ( 10 ) for coupling objects ( 50 and 50 ′) is configured as a single unit, the number of parts and the number of assembling processes may be reduced, and the fastener ( 10 ) may be handled more simply using the disassembling apparatus 30.

1 . A fastener, comprising:
 a hollow body having a through hole formed through an inside of the hollow body in a longitudinal direction thereof;   a coupling leg formed to extend in the longitudinal direction of the hollow body by a deformation slit formed to be open to one end portion of the hollow body so that the coupling leg is elastically deformed; and   a releasing portion provided at a location of a front end portion of the coupling leg which corresponds to an inside of the through hole of the hollow body so that the releasing portion receives a force which causes the coupling leg to move toward a center of the through hole,   wherein one side of an outer surface of the hollow body and one side of the coupling leg are placed at opposite inlets of respective fastening holes of objects to be coupled to each other.   
     
     
         2 . The fastener according to  claim 1 , wherein a coupling protrusion is formed on an outer periphery of the front end portion of the coupling leg, and a placing step is formed in a stepwise manner at one side of the outer surface of the hollow body so that a gap between the coupling protrusion and the placing step allows the objects to be located between the coupling protrusion and the placing step. 
     
     
         3 . The fastener according to  claim 2 , wherein the coupling leg comprises a plurality of coupling legs spaced apart from each other at predetermined intervals. 
     
     
         4 . The fastener according to  claim 3 , wherein the releasing portion extends with a slope toward the center of the through hole. 
     
     
         5 . The fastener according to  claim 4 , wherein the releasing portion is shaped as a plate whose width gradually decreases toward a front end of the releasing portion. 
     
     
         6 . The fastener according to  claim 1 , wherein a separating protrusion is formed to protrude around the outer surface of the hollow body on the other end portion of the hollow body which corresponds to an opposite side of the front end portion of the coupling leg. 
     
     
         7 . The fastener according to  claim 2 , wherein a separating protrusion is formed to protrude around the outer surface of the hollow body on the other end portion of the hollow body which corresponds to an opposite side of the front end portion of the coupling leg. 
     
     
         8 . The fastener according to  claim 3 , wherein a separating protrusion is formed to protrude around the outer surface of the hollow body on the other end portion of the hollow body which corresponds to an opposite side of the front end portion of the coupling leg. 
     
     
         9 . The fastener according to  claim 4 , wherein a separating protrusion is formed to protrude around the outer surface of the hollow body on the other end portion of the hollow body which corresponds to an opposite side of the front end portion of the coupling leg. 
     
     
         10 . The fastener according to  claim 5 , wherein a separating protrusion is formed to protrude around the outer surface of the hollow body on the other end portion of the hollow body which corresponds to an opposite side of the front end portion of the coupling leg. 
     
     
         11 . The fastener according to  claim 6 , wherein the hollow body has a cylindrical shape. 
     
     
         12 . A disassembling apparatus, comprising:
 a frame;   a release pin protruding on one side of the frame, the release pin having a release coupling hole formed to be open toward a frond end thereof, the release coupling hole allowing a releasing portion of a fastener to be inserted therein and guided thereby; and   a release lever formed at the frame so that the release lever serves as a lever with a connection portion between the frame and the release lever as a fulcrum, wherein a catching protrusion is formed at a front end of the release lever so as to face an outer surface of the release pin.   
     
     
         13 . The disassembling apparatus according to  claim 12 , wherein the frame has a ring shape. 
     
     
         14 . The disassembling apparatus according to  claim 13 , wherein the release coupling hole has a release surface with a slope so that a sectional area of a cross-sectional surface of the release coupling hole gradually decreases toward an inside of the release coupling hole. 
     
     
         15 . The disassembling apparatus according to  claim 14 , wherein the release pin protrudes from a front end of an extending strut which is formed to protrude from the frame so that an outer diameter of the release pin is smaller than or equal to an inner diameter of the fastener.